After a space merchant vessel perceives an unknown transmission as a distress call, its landing on the source moon finds one of the crew attacked by a mysterious lifeform, and they soon realize that its life cycle has merely begun.

Jack Hall, paleoclimatologist, must make a daring trek from Washington, D.C. to New York City, to reach his son, trapped in the cross-hairs of a sudden international storm which plunges the planet into a new Ice Age.

During an archaeological expedition on Bouvetøya Island in Antarctica, a team of archaeologists and other scientists find themselves caught up in a battle between the two legends. Soon, the team realize that only one species can win.

After her last encounter, Ellen Ripley crash-lands on Fiorina 161, a maximum security prison. When a series of strange and deadly events occur shortly after her arrival, Ripley realizes that she brought along an unwelcome visitor.

A soldier from Earth crashlands on an alien world after sustaining battle damage. Eventually, he encounters another survivor, but from the enemy species he was fighting. They band together ... See full summary »

In the distant future, a police marshal stationed at a remote mining colony on the Jupiter moon of Io uncovers a drug-smuggling conspiracy, and gets no help from the populace when he later finds himself marked for murder.